./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df93fd989d6774382f7bc06f2f37e13403a51d4e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:00:07,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:00:07,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:00:07,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:00:07,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:00:07,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:00:07,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:00:07,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:00:07,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:00:07,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:00:07,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:00:07,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:00:07,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:00:07,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:00:07,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:00:07,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:00:07,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:00:07,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:00:07,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:00:07,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:00:07,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:00:07,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:00:07,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:00:07,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:00:07,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:00:07,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:00:07,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:00:07,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:00:07,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:00:07,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:00:07,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:00:07,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:00:07,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:00:07,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:00:07,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:00:07,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:00:07,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:00:07,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:00:07,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:00:07,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:00:07,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:00:07,355 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:00:07,391 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:00:07,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:00:07,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:00:07,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:00:07,394 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:00:07,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:00:07,395 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:00:07,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:00:07,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:00:07,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:00:07,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:00:07,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:00:07,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:00:07,397 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:00:07,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:00:07,398 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:00:07,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:00:07,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:00:07,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:00:07,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:00:07,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:00:07,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:00:07,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:00:07,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:00:07,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:00:07,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:00:07,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:00:07,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:00:07,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:00:07,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df93fd989d6774382f7bc06f2f37e13403a51d4e [2020-11-28 03:00:07,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:00:07,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:00:07,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:00:07,768 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:00:07,769 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:00:07,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2020-11-28 03:00:07,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/data/6b33a5936/653ea11b2eb748e2a89703eb5252efa5/FLAG3054622c3 [2020-11-28 03:00:08,453 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:00:08,454 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2020-11-28 03:00:08,476 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/data/6b33a5936/653ea11b2eb748e2a89703eb5252efa5/FLAG3054622c3 [2020-11-28 03:00:08,768 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/data/6b33a5936/653ea11b2eb748e2a89703eb5252efa5 [2020-11-28 03:00:08,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:00:08,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:00:08,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:00:08,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:00:08,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:00:08,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:00:08" (1/1) ... [2020-11-28 03:00:08,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@606b7ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:08, skipping insertion in model container [2020-11-28 03:00:08,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:00:08" (1/1) ... [2020-11-28 03:00:08,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:00:08,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:00:09,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:00:09,251 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:00:09,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:00:09,374 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:00:09,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:09 WrapperNode [2020-11-28 03:00:09,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:00:09,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:00:09,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:00:09,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:00:09,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:09" (1/1) ... [2020-11-28 03:00:09,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:09" (1/1) ... [2020-11-28 03:00:09,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:00:09,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:00:09,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:00:09,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:00:09,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:09" (1/1) ... [2020-11-28 03:00:09,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:09" (1/1) ... [2020-11-28 03:00:09,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:09" (1/1) ... [2020-11-28 03:00:09,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:09" (1/1) ... [2020-11-28 03:00:09,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:09" (1/1) ... [2020-11-28 03:00:09,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:09" (1/1) ... [2020-11-28 03:00:09,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:09" (1/1) ... [2020-11-28 03:00:09,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:00:09,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:00:09,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:00:09,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:00:09,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:00:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:00:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:00:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:00:09,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:00:10,860 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:00:10,861 INFO L298 CfgBuilder]: Removed 294 assume(true) statements. [2020-11-28 03:00:10,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:10 BoogieIcfgContainer [2020-11-28 03:00:10,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:00:10,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:00:10,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:00:10,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:00:10,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:00:08" (1/3) ... [2020-11-28 03:00:10,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3210cf01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:00:10, skipping insertion in model container [2020-11-28 03:00:10,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:09" (2/3) ... [2020-11-28 03:00:10,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3210cf01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:00:10, skipping insertion in model container [2020-11-28 03:00:10,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:10" (3/3) ... [2020-11-28 03:00:10,875 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2020-11-28 03:00:10,887 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:00:10,892 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:00:10,905 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:00:10,946 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:00:10,947 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:00:10,947 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:00:10,947 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:00:10,947 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:00:10,947 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:00:10,948 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:00:10,948 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:00:10,978 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states. [2020-11-28 03:00:10,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:00:10,987 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:10,988 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:10,989 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:10,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:10,995 INFO L82 PathProgramCache]: Analyzing trace with hash 394423535, now seen corresponding path program 1 times [2020-11-28 03:00:11,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:11,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920641014] [2020-11-28 03:00:11,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:11,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:00:11,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920641014] [2020-11-28 03:00:11,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:11,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:00:11,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128790345] [2020-11-28 03:00:11,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:00:11,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:11,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:00:11,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:00:11,396 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 2 states. [2020-11-28 03:00:11,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:11,456 INFO L93 Difference]: Finished difference Result 391 states and 596 transitions. [2020-11-28 03:00:11,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:00:11,461 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:00:11,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:11,478 INFO L225 Difference]: With dead ends: 391 [2020-11-28 03:00:11,478 INFO L226 Difference]: Without dead ends: 193 [2020-11-28 03:00:11,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:00:11,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-11-28 03:00:11,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2020-11-28 03:00:11,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-11-28 03:00:11,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2020-11-28 03:00:11,567 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2020-11-28 03:00:11,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:11,568 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2020-11-28 03:00:11,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:00:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2020-11-28 03:00:11,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:00:11,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:11,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:11,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:00:11,572 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:11,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:11,575 INFO L82 PathProgramCache]: Analyzing trace with hash -516607218, now seen corresponding path program 1 times [2020-11-28 03:00:11,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:11,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087027967] [2020-11-28 03:00:11,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:11,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:00:11,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087027967] [2020-11-28 03:00:11,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:11,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:00:11,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343153413] [2020-11-28 03:00:11,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:00:11,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:11,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:00:11,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:00:11,710 INFO L87 Difference]: Start difference. First operand 193 states and 288 transitions. Second operand 3 states. [2020-11-28 03:00:11,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:11,734 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2020-11-28 03:00:11,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:00:11,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:00:11,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:11,740 INFO L225 Difference]: With dead ends: 193 [2020-11-28 03:00:11,741 INFO L226 Difference]: Without dead ends: 75 [2020-11-28 03:00:11,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:00:11,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-11-28 03:00:11,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-11-28 03:00:11,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-11-28 03:00:11,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2020-11-28 03:00:11,760 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2020-11-28 03:00:11,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:11,760 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2020-11-28 03:00:11,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:00:11,761 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2020-11-28 03:00:11,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:00:11,764 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:11,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:11,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:00:11,766 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:11,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:11,768 INFO L82 PathProgramCache]: Analyzing trace with hash 134472408, now seen corresponding path program 1 times [2020-11-28 03:00:11,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:11,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072467961] [2020-11-28 03:00:11,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:11,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:00:11,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072467961] [2020-11-28 03:00:11,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:11,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:00:11,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716621515] [2020-11-28 03:00:11,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:00:11,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:11,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:00:11,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:00:11,889 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand 3 states. [2020-11-28 03:00:11,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:11,938 INFO L93 Difference]: Finished difference Result 213 states and 321 transitions. [2020-11-28 03:00:11,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:00:11,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:00:11,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:11,941 INFO L225 Difference]: With dead ends: 213 [2020-11-28 03:00:11,941 INFO L226 Difference]: Without dead ends: 144 [2020-11-28 03:00:11,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:00:11,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-28 03:00:11,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 140. [2020-11-28 03:00:11,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-28 03:00:11,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 211 transitions. [2020-11-28 03:00:11,955 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 211 transitions. Word has length 24 [2020-11-28 03:00:11,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:11,955 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 211 transitions. [2020-11-28 03:00:11,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:00:11,956 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 211 transitions. [2020-11-28 03:00:11,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:00:11,959 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:11,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:11,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:00:11,960 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:11,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:11,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1119046690, now seen corresponding path program 1 times [2020-11-28 03:00:11,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:11,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845954879] [2020-11-28 03:00:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:00:12,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845954879] [2020-11-28 03:00:12,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:12,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:00:12,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962289768] [2020-11-28 03:00:12,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:00:12,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:12,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:00:12,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:00:12,073 INFO L87 Difference]: Start difference. First operand 140 states and 211 transitions. Second operand 3 states. [2020-11-28 03:00:12,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:12,149 INFO L93 Difference]: Finished difference Result 295 states and 448 transitions. [2020-11-28 03:00:12,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:00:12,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-11-28 03:00:12,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:12,151 INFO L225 Difference]: With dead ends: 295 [2020-11-28 03:00:12,151 INFO L226 Difference]: Without dead ends: 161 [2020-11-28 03:00:12,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:00:12,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-11-28 03:00:12,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2020-11-28 03:00:12,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-11-28 03:00:12,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 231 transitions. [2020-11-28 03:00:12,178 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 231 transitions. Word has length 27 [2020-11-28 03:00:12,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:12,179 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 231 transitions. [2020-11-28 03:00:12,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:00:12,180 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 231 transitions. [2020-11-28 03:00:12,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:00:12,182 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:12,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:12,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:00:12,183 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:12,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:12,184 INFO L82 PathProgramCache]: Analyzing trace with hash -428868179, now seen corresponding path program 1 times [2020-11-28 03:00:12,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:12,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777665230] [2020-11-28 03:00:12,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:12,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:00:12,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777665230] [2020-11-28 03:00:12,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:12,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:00:12,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300061257] [2020-11-28 03:00:12,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:00:12,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:12,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:00:12,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:00:12,303 INFO L87 Difference]: Start difference. First operand 159 states and 231 transitions. Second operand 5 states. [2020-11-28 03:00:12,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:12,454 INFO L93 Difference]: Finished difference Result 809 states and 1191 transitions. [2020-11-28 03:00:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:00:12,455 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 03:00:12,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:12,459 INFO L225 Difference]: With dead ends: 809 [2020-11-28 03:00:12,460 INFO L226 Difference]: Without dead ends: 656 [2020-11-28 03:00:12,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:00:12,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2020-11-28 03:00:12,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 252. [2020-11-28 03:00:12,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-11-28 03:00:12,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 356 transitions. [2020-11-28 03:00:12,496 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 356 transitions. Word has length 27 [2020-11-28 03:00:12,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:12,497 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 356 transitions. [2020-11-28 03:00:12,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:00:12,497 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 356 transitions. [2020-11-28 03:00:12,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:00:12,498 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:12,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:12,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:00:12,499 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:12,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:12,499 INFO L82 PathProgramCache]: Analyzing trace with hash -2129131921, now seen corresponding path program 1 times [2020-11-28 03:00:12,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:12,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289185153] [2020-11-28 03:00:12,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:00:12,595 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:00:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:00:12,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:00:12,728 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:00:12,728 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:00:12,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:00:12,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:00:12 BoogieIcfgContainer [2020-11-28 03:00:12,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:00:12,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:00:12,853 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:00:12,853 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:00:12,854 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:10" (3/4) ... [2020-11-28 03:00:12,856 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:00:12,948 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_36061c92-e327-4680-8238-fef0bf5aefb0/bin/uautomizer/witness.graphml [2020-11-28 03:00:12,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:00:12,950 INFO L168 Benchmark]: Toolchain (without parser) took 4177.21 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 67.5 MB in the beginning and 87.5 MB in the end (delta: -20.0 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:12,950 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory is still 43.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:00:12,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.07 ms. Allocated memory is still 98.6 MB. Free memory was 67.3 MB in the beginning and 63.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:12,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.04 ms. Allocated memory is still 98.6 MB. Free memory was 63.3 MB in the beginning and 58.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:12,952 INFO L168 Benchmark]: Boogie Preprocessor took 54.76 ms. Allocated memory is still 98.6 MB. Free memory was 58.1 MB in the beginning and 55.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:12,952 INFO L168 Benchmark]: RCFGBuilder took 1354.70 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 54.4 MB in the beginning and 77.6 MB in the end (delta: -23.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:12,953 INFO L168 Benchmark]: TraceAbstraction took 1977.78 ms. Allocated memory is still 132.1 MB. Free memory was 77.0 MB in the beginning and 99.0 MB in the end (delta: -22.0 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:12,953 INFO L168 Benchmark]: Witness Printer took 95.39 ms. Allocated memory is still 132.1 MB. Free memory was 99.0 MB in the beginning and 87.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:12,956 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory is still 43.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 596.07 ms. Allocated memory is still 98.6 MB. Free memory was 67.3 MB in the beginning and 63.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.04 ms. Allocated memory is still 98.6 MB. Free memory was 63.3 MB in the beginning and 58.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.76 ms. Allocated memory is still 98.6 MB. Free memory was 58.1 MB in the beginning and 55.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1354.70 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 54.4 MB in the beginning and 77.6 MB in the end (delta: -23.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1977.78 ms. Allocated memory is still 132.1 MB. Free memory was 77.0 MB in the beginning and 99.0 MB in the end (delta: -22.0 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. * Witness Printer took 95.39 ms. Allocated memory is still 132.1 MB. Free memory was 99.0 MB in the beginning and 87.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L943] int splverifierCounter ; [L944] int tmp ; [L945] int tmp___0 ; [L946] int tmp___1 ; [L947] int tmp___2 ; [L950] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L952] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L954] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L960] tmp = __VERIFIER_nondet_int() [L962] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] COND TRUE waterLevel < 2 [L608] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L970] tmp___0 = __VERIFIER_nondet_int() [L972] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L980] tmp___2 = __VERIFIER_nondet_int() [L982] COND FALSE !(\read(tmp___2)) [L988] tmp___1 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L922] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L929] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L703] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L710] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L552] int tmp ; [L553] int tmp___0 ; [L554] int tmp___1 ; [L628] int retValue_acc ; [L631] retValue_acc = methaneLevelCritical [L632] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L558] tmp = isMethaneLevelCritical() [L560] COND FALSE !(\read(tmp)) [L660] int retValue_acc ; [L663] retValue_acc = waterLevel [L664] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L564] tmp___0 = getWaterLevel() [L566] COND TRUE tmp___0 == 2 [L836] int retValue_acc ; [L839] retValue_acc = pumpRunning [L840] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L568] tmp___1 = isPumpRunning() [L570] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product56.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 200 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 753 SDtfs, 598 SDslu, 522 SDs, 0 SdLazy, 73 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 410 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4790 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...